The film's narrative relies on the accumulation of small crises rather than a single big twist. However, the major turning point is the death of Alexandre (Jean-Pierre Aumont) in a car accident just before his final scenes are shot. This forces Ferrand to use a body double and rewrite the script to have the character die, mirroring reality.
Another key plot point is the affair between Julie and Alphonse. Alphonse, heartbroken over his girlfriend leaving him for a stuntman, threatens to quit. Julie sleeps with him to comfort him and keep the production going. Alphonse mistakes this for love and tells Julie's husband, creating a new crisis. The film ends with the shoot wrapping; the 'family' immediately dissolves, shaking hands and driving away, highlighting the melancholy transience of their connection. The final shot reveals the 'snow' was just foam, re-emphasizing the theme of illusion.